I've never really thought that, myself. I didn't have very good luck with W231 and 230grn bullets, but 200grn'ers seem to work well enough. Back during the powder shortage, I found 10# of W231, I still have the one partially used can on the bench... I sold off the other 9#s. I don't really have anything else to load it in.
Back to the .45/BE-86 topic... I shot some test loads of BE and the .45 Colt yesterday, the results were not promising. It still delivered in my 9mm test loads, however, which is what I bought it for.